Portable boring and grinding device for automobile-cylinders



W. S. MYERS ANU L'. SMITH.

PORTABLE BORING AND GRNDING DEVECE FR AUTOMOBRLE NUMBERS.

APPLICATION mw mmf 18. m9.

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PORTABLE BORING AND ORINOING uEvIcE FOR AUTOMOBILE OYLINDERS.

APPLICATION FILED JUNE I8. I9I'9. Patented May 11, 1920.

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W. S. MYERSA AND A. Ll SMITH. n I RTABLE BORING AND GRINDING DEVICE FOR AUTOMOBILE CYLINDERS.

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APPLICATION FILED .IUNE I8. I9I9.

L .I I w Patented May 11, 1920..

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STAT 15S PATENT OFFICE.

killll/Eliii'. S. ZEll ANI) AMZY L. SMITH, 0F ASHLAND, KENTUCKY, ASSIGNIRS OF HEEHIRID T C. R. "WILSON, 0F CHICAGO, ILLINOIS.

eer'li BORING AND GRIDING DEVICE FOR AUTOMOBILE-CYLINDERS.

specification of Letters Patent. Patented May 11, lgga Applica/tien filed June 1S, 1919. Serial No. 395,023.

.To all 'whom 25 31mg/ cmwcm:

Be it li. ownithat we, WiLLiAM S. MYERS and Anzv L. SMITH, both citizens of the -f United States, end residentsol Ashland, in

the county of lloyd, State of Kentucky, have ii'iveilted certain new and useful .improvements in Portable Boring and Grinding .Devices for utomobile--ylinders, of which the following is a speeiiication.

@ur invent-ion relates to a. devi ie for machining the cylinders oi' internal combustion engines and particularly to novel device adopted to be directly mounted upon an engine casting for the purpose of boring and lo gril "ling the cylinders thereof without rcmoving the engine .from the car.

lt frequently becomes necessary to reiinisli the cylinders oi automobile engines due to scoring. pitting and wear oi' the cylinders and this hos heretofore been effected only by removing the engine 'from the automobile and placing it successivelyI in boring or grinivling machines. Not only does this involve considerable expense inthe matter oi labor in removing and returning the engine but entails additional. pense because of the lebor oi 5ie-:l mechanics in adjusting the engin in the ring and nding machines! Our improvement eonteniplatei'i the con- 230 etructionoii a sim .e portable machine haw.

in a double function and adapted to be planned in proper position on an automobile engine after the heed thereof has'been removed and which will s pientially or simul- 3-5 taeeouslj.Y grind and bore the cylinders. Bv the use oithis machine the relatively great expense heretofore entailed in these operotions is materially reduced, the desired results may be secured ,by any competent gar-i ego niei'zhenie. end the owner is not de prived oit' his automobile for great lengths oi" time. l

. The desired i' suit is secured by providing a simple casting, comprising a bese and standard, the base being adapted to rest upon :ind to be temporarily secured to a cylinder costing, the standard containing hearings for e relatively massive shaft to the lower end oi which a head is secured.

Adjustehly mounted in this head is a cutting tool and ,an einer? wheel, both of which are' adapted for bodily rotation with the shofnthe emery wheel having o planetaryniovenient, the rotation being effected h v aA 5o she-it ermnged internally of the large shaft.

The construction is adapted for otherl garage uses, as the head which carries the tools referred to may be removed and replaced by a. drill chuck it' required.

The invention will be more readilynnderstood by reference to the accompanying drawings, wherein,

Figure 1 is a side elevation of our improved device showing it in operative relation to a cylinder casting;

Fig. 2 is a plan view thereof;

Fig. 3 is a bottom plan view of the cutter head; and,

Fig. 4 is a side elevation of the construction shown in Fig. 3.

Fig. 5 is a detail side elevation of the feeding mechanism;

Fig. G is a back view thereof; and,

Fig. 'l' is a plan View.

In the drawings it will be seein that we provide a casting which comprises e. bese 10 and a standard 11, the base resting upon and being adapted to be temporarily secured to a. cylinder casting, such as shown in Fig. 1. The standard is provided with brackets 12, 13, 14, which contain bearings for vertically movable and rotatable shafts 15, '16.' 'The shaft 15 is mounted within a large sleeve 17 which is vertically movable in the bearings 12, 13, While the shaft 16 is mounted centrally within the shaft 15. A head 18 is secured tothe lower end of the shaft 15,

`as best shown in Figs.- 3 and fi, being provided with radial dove-tailed grooves 19, 2O.A lVithin the space formed by the radial groove 19 is mounted a properly shaped block 21 having an arm or bracket 22 se-V `an vidler gear 28 carriedi by an eilii`29,l

which'is mounted for osoillationon the' een ter of the shaft 16. The erm` is adapted tov engage an arcuaterib 30 on' the lower face yofthe head 18 and be held ,in adjusted position by lthe set screw 31. The idler 2 8 engages the gear 26 and causes rotation of the emery Wheel.

VProvision is made for radial adjustment of the block 21. such as `the screw 32, the block being held firmly in position by means C of the screw 33. rl.`he in and out adjustment makes necessary the idlerl 28 and the csc/il-A lating arm v.on which the idler is mounted. As the grinding wheel is moved. radially it will be seen to be necessary to swing the arm 29 to bring the idler into mesh witltthe grinding wheel gear 26.

The groove 20 on the diametrically opposite side of the head accommodates what is in eect a tool post 34 within the lower end of which a cutting tool 35 is secured by means of the screwG. This member has capacity for in and out adjustment by similar mechanism. as that described in connection with the grinder.

The parts are rotated by means of an electric motor 37' havingI two belt wheels 38, 39. A' belt 40 extends from 'the pulley 38 to a large idler pulley 41 which carries a small idler pulley 42, a belt connecting the small. pulley to a large pulley 44, which is rigid with a shaft 45 carried in suitable bearing at the upper end oi the machine. A bevel pinion 46 is secured to the shaft 45 and engages a large bevel gear 47 splined to the shaft l5 whereby this shaft to the lower end of which'the head 18 is secured, is caused to rotate. The belt 48 extends from the large pulley wheel 3f) over suitable idler pulleys 49 to Ia small pulley 50 mounted insuitable bearings and splined to the shaft 16 which causes the rotation of the grinding wheel.

Also splined to the shaft l5 is a sprocket wheel. 51 which is connected by a chain 52 to a sprocket wheel 53, aslbest shown in. Fig. l. The wheel E-is rigid with a shaft 54 having a worm at its 'lower end, the worm engaging a worm wheel 55 on a sha-lit This shaft serves to etiect automatic feed of the tools in a vertical direction. Hand feed may also be etlected by the hand wheel 57, the feeding devices engaging a. rack 58 which is connected to the sleeve 17 a-nd causes vertical reciprocation thereof in- 65, the gears 6B, 65 beingr constantly in mcs-lrv with each other and benigmadapted"toV be successively moved into mesh. with the 59 by the oscillation ot the plate. The gear 65 is not in mesh with the gear 64. The shaft carries a worm 66 which engages a worm gear (S7 secured to a shaft 68. This shaft carries avgean 69 which engages with the rack 58 and serves to effect the up and down movement of the rotatable shafts 15,

gear

16, which carry the cutting and grinding heads. .By oscillating the plate 6l the gears 63, may be alternately brought into operative relation and upwardl and downward movement secured.

When it is desirable to adjust the teed'by hand, the automatic feeding mechanism is disengaged In the following manner It will be noted that the gears and shaft 56 are mounted in bearings carried by la frame which is indicated by the nume 'all 70 in Fig.

6, this being slidably mounted on the bracket 71, which is secured to the standard oit the machine. The :trame 70 is held in desired position by means ot the cam T2, loperated by the arm or handle 72. As the arm 73 is oscillated the frame which carries the gears, including the worm gear 63, may be raised andlowered as desired, thus moving the worm gear 66 out of and into engagement with the worm gear 67. When raised out otengagement, the vertical movement of the` cutting and. grinding heads may be effected manually by means of the hand wheel 57. i

If a drill chuck o1" similar device is to be employed the head 18 is detached l'rom the shaft l5.l and the desired tool applied in its place. f

ln the construction shown in Fig. l the de.ice is .associated with. an engine casting s and a combined cutting and grinding action has been effected. t will be not-ed that the emery wheel has a planetary action and that it may be operated simultaneously with the cutting tool... rthis ett'ects a saving in time as'it requires but a single adjustment for each cylinder.

Obviously the motive power might be changed and that modifications in certain. features may be made allwithout. departure from the spirit of our invention.

wWe claim:

l. In a device ot the class described, the .combination oit portable support, a main shaft, a head carried thereby, a. cutting tool and a grinding device earned by the head, means for rotating the lug d and causing the revolution of the grinding device, and means for rotating the grinding device, substantially as described.

2.111 a device of the class described, the combination of a support adapted tobe removably located on an engine casting, a vertically reci procable shaft carried by the support, a. licadcarried by the shaft, a cutting tool adapted for rotation with the shaft, and a grinding device adapted for bodily rotation with the head and for independent rotation., ysubstantially as described.

8. In a unitary portable boring and grinding device, the combination oflla support having bearings, a shaft mounted for vertical reciprocation. in said bearings, a cutting tool and a grinding device secured to manine the lower end ef seid sii-uit end reteiabie therewith, end ineens for effecting independ ent remiien of ihe grii'iding device, Sub stantiaiiv en described.

4. In n perte-bie boring and grinding device, the eernbrineion of e standard edepted to rest npen e cylinder casting, simii; cer ried by seid sendard, cutting ioni secured to the ioiver end of seid siie'i, e. grinding device aise secured te seid eiei, and ineens 'for eii'ecizing pienetary movement ei' seid grinding device, substanizieiiy :is described.

5. in unitary pore'bie boring and grind ing device, the cembinetion `@i2 e, standard providing bearings, a verieaii'y reeipreeeiiie Sleeve, e reieeiyie shaft nieu? ed 1wiihin the sleeve, e heed carried by tiiesnefe, e eutting tool carried by :ind reteeebie with the heed, and grinding Whe/ei aie@ secured to che heed; and adapted fer eimniibeneeus operatien iviih the cutiing teni, end ineens for eii'ecizing pisineary movement of the grindingd wi'ieei, subetenieiiy described.

6. In n, device ei the dass described, the combineiien ei e casting ciimprising :L base end e standard, base being; adep'ed te resi upon e cyiinder easing, n rriiaitabie shaft carried by the Stendal-d, a head secured te the ieivei end of the eiief, :i cutting' tooi end e grinding device mounted for redini edjusnieni'- in the heed, end ai, second shaft arranged inerxniiiy ef the irstsheft end adapted io effect with the i'irst shaft e planetary movement of the grinding device, substentieiiy as described.

7. in a. device of the class; described, the combination of :i sianiizrr'd, e shei ineunfsed for ver tieni reeiprecaition on he Standard, n heed carried by the shaft, seid heed being pz'evideiii with redini grooves, ciizing @cui end ii grinding device mounted in seid grooves with capacity for rediel adjustment, e seeend shaft errenged internally @if the first shaft and gearing connecting the second shaft to the grinding device, the parte being arrei'iged for independen or simuiteneous operation of the cutting and grinding devices, subseenieiiy es described.

8. 'line device 0:5 the ciese described, the combination of a support adapted ie be re meveiiiy ieee-ted en an engine cesting, e, verice-iiy reciprecebie shaft carried on the support, e hea-d carried by time shaft, e cuti ting inni edepi: for rotation with `Lhe shaft, e grinding dem. ce eine adapted for rotation with the sire i., ineens fcreiieeing independent rotation ni' the grinding device, and .ieans pernii'ziing bodily movement of lie grinding device 230v/:1rd and freni the cener ei seid sinift, subsmntieiiy as described.

9. iin e di 7ice ci" the class described, the coinbinetien ef e support adapted to be renievebiy inclined en en engine casting', a verticeiiyreciprecebie eiiei. carried on the support, e heed carried by the shaft, ineens en said heed edep-ed *se accommodate cutting toni, e. grinding deviee mounted en said heed, Ineens carried by the hea-d for effecting independent rotation V0i the grinddeviee, and .means permitting redini :idjustmeu't of the grinding device relative to seid heed, substantially es described.

Signed et Ashland, Kentucky, this 18th dey of June, 1915i. I

` NiLLiAii/i S. MYERS. AMZY L. iMIiTL l' Witness Viizgiier iiieininnv'.

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